System Glossary
 Glossary Search for priapium (Search Options)

Definition of Term

priapium
(English) A complex muscular and bony clasping and copulatory organ derived mainly from the pelvic fins, found under the head of male Phallostethoidea with the anus opening on one side and the genital pore on the other. The structure varies among family members. Hook-like ctenactia articulate basally with the aproctal axial which is movably articulated with the proctal axial bone itself, suspended anteriorly by the outer (and sometimes inner) pulvinular bone from the cleithrum and perhaps the urohyal. Other elements are the priapal ribs, the anteplural cartilage (supporting elements along with the cleithrum and the pulvinar), the toxactinium, the infrasulcar and the uncus (forming the claspers along with the ctenactinium), the penial, basipenial, papillary, prepapillary and cristate bones (forming the papillary unit).

Other Search Engines

European Environment Agency Glossary of the European Environmental Agency
Wikipedia The Free Encyclopedia
Encyclopedia Britannica Highly authoritative source
EPA Terms Glossary of the U.S. Environmental Protection Agency
Google Search The largest Internet Search Engine
Google Image Search for Images related to the term
eENVplus Thesaurus Thesaurus gathering glossaries for biodiversity, environment and biogeography
A-Z Biodiversity Terms Glossary providing definitions of terms, areas and acronyms related to biodiversity, commonly used, internationally recognized where possible, well referenced, and derived from legitimate sources
Glossary Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Search
Back to Top